Apple on Friday greeted customers at its stores around the world for the debuts of the iPhone 16, Apple Watch Series 10 and AirPods 4.

The new products were announced at an event earlier this month and have been available for pre-order since Sept. 13. The company lit up the glass cube at its Fifth Avenue Apple Store in New York City, in a nod to the enhanced Siri, which will light up the borders of the new iPhone’s screen when that feature rolls out next month.

Apple’s fresh iPhones mark the company’s latest move into artificial intelligence, with new Apple Intelligence features that will begin to launch in October. The new features will allow customers to rewrite text, remove objects from photos and speak with an improved Siri. The software advancements will only be available on iPhone 16 and last year’s iPhone 15 Pro devices.

But Apple shares slid on Monday after analyst reports suggested that demand for the latest iPhones was lower than expected. TF Securities analyst Ming-Chi Kuo said in a note on Monday that first-weekend sales were down about 12% year over year from the iPhone 15 last year. Barclays, JPMorgan and Bank of America also noted shipping times could translate to lighter demand for the more expensive iPhone Pro models compared with last year.

CNBC’s Steve Kovach spoke with CEO Tim Cook outside Apple’s Fifth Avenue store and asked whether sales looked better or worse than last year. “I don’t know yet. It’s only the first hour, so we’ll see,” Cook said.

On Friday, UBS analysts suggested investors shouldn’t overreact to what appears to be lighter sales because that data is also collected by analyzing the wait times for new iPhone models and that those were longer last year due in part to supply chain disruptions.

“Ahead of the iPhone 16 announcement, our analysis suggested that a lack of a killer app and arguably somewhat half-baked introduction of Apple Intelligence would dampen demand,” the UBS analysts wrote. “While we still argue the collection of iPhone/iOS attributes are more evolutionary than revolutionary, we caution that investors not overreact to data that suggests somewhat initial tepid demand.”

The UBS analysts said supply chain disruptions last year “slightly distorted/extended last year’s data,” which led to longer wait times for customers for Pro models. Last year, UBS wrote, customers had a 41-day wait time for some iPhone 15 Pro Max pre-orders compared with a 26-day wait time for the iPhone 16 Pro Max this year.

“Nevertheless, data across all models and regions roughly a week post launch support our view that a super-cycle is not imminent as US and China data on the margin is disappointing relative to last year,” they wrote.

The Apple Watch Series 10 offers a larger screen than that of earlier models. It will support, along with the earlier Series 9, new Sleep Apnea detection, as well as other fresh features. The AirPods 4 offer a refresh with a smaller charging case and an option with noise cancellation.

CNBC reviewed the new iPhone 16 Pro Max and the Apple Watch Series 10 earlier in the week.

— CNBC’s Michael Bloom and Steve Kovach contributed to this report.

Indian education technology startup Physics Wallah announced on Friday that it had raised $210 million as it looks to expand its business, in part via acquisitions, amid troubles in the sector.

The funding, led by Hornbill Capital, and involving Lightspeed Venture Partners, GSV and WestBridge, values the company at $2.8 billion, a significant increase from its last valuation of $1.1 billion.

Physics Wallah, founded in 2020, is one of India’s many education technology, or ed-tech firms, that offers free and paid-for courses for various competitive examinations in India. The company aims to differentiate itself by offering courses that on average cost less than $50, in order to be accessible to more kids in poorer parts of the country.

“We are not built for 1% of the country or 1% of the world, we are built for the remaining 99%, those who cannot go to these fancy coaching classes … now we enable different kinds of students,” Alakh Pandey, CEO of Physics Wallah, told CNBC in an interview.

The company runs on a freemium business model, hosting courses for free on YouTube. For those students who want more features such as homework and tests, there is a paid offering.

The company said its revenue grew 250% year-on-year in the fiscal year ended March 2024 and Pandey said he expects the “highest absolute” EBITDA in the current fiscal year. Earnings before interest, taxes, depreciation, and amortization, or EBITDA, is one measure of profitability used by companies.

Pandey said the company is open to acquisitions provided it gives them access to new content and users.

“Consolidation, we are open to it if it’s based on different geography that we cannot serve to, and if it caters to content and community first,” Pandey said.

The CEO pointed to the equity investments it has already made. Last year, Physics Wallah brought a 50% stake in Xylem Learning, an ed-tech company headquartered in Kerala in south India.

But that expansion also led to some high-profile collapses in the sector, including ed-tech firm Byju — once valued at $22 billion — which has all but collapsed and is facing multiple insolvency proceedings in India. Its fall has been attributed to factors including aggressive acquisitions, high spend on marketing and mismanagement.

Discussing some of the failures in the ed-tech sector in India, Pandey said his company is focused on the content it offers and the outcomes for students.

“If you see interviews or even read the headlines of previous actors that you’re talking about, all they talk about is the crazy valuation they have, the funds they have raised how much money they have made,” Pandey told CNBC.

“Education is different thing. It’s not like any other startup that you can grow and talk about crazy valuation … at heart you have to accept that you are actually working to change the life of students.”

Maheshwari, who also spoke to CNBC, said that despite the failures, the market is still growing.

“I don’t believe the market has shrunk. A couple of players have struggled to perform post-Covid … but the learners are increasing year-on-year,” Maheshwari said.

Speaking about Physics Wallah’s future, Pandey said an initial public offering will happen, but wouldn’t be drawn on a timeline.

“An IPO is something that we will do. We want to have a strong governance in the company, we are working on that, forming a board of independent directors … it’s not that important for us when the IPO will happen, we are running the company like a public company,” Pandey said.

Investors poured into tech stocks at one of the fastest clips of the year a day after the Federal Reserve cut its benchmark interest rate for the first time since 2020.

Led by a 7.4% gain in shares of Tesla and a 4% jump in Nvidia, the Nasdaq rose 2.5% on Thursday, its fourth-sharpest rally of 2024. The biggest gain of the year for the tech-heavy index was a 3% increase on Feb. 22.

Lower interest rates tend to benefit tech stocks, because reduced borrowing costs and bond yields make risky bets more attractive. In addition to the central bank’s half-point reduction, the Federal Open Market Committee indicated through its “dot plot” the equivalent of 50 more basis points of cuts by the end of the year, eventually coming down by 2 percentage points beyond Wednesday’s move.

While the Nasdaq has been on a steady rise this year, powered by Nvidia and the enthusiasm around artificial intelligence, Thursday’s rally pushed the benchmark to its highest since mid-July. The Nasdaq peaked at 18,647.45 on July 10, and it’s now just 3.5% shy of that level, closing at 18,013.98.

Nvidia, whose processors are powering the generative AI boom and services like OpenAI’s ChatGPT, gained 4% on Thursday to $117.87. The shares are up about 138% for the year after more than tripling in 2023, though they’re still 13% below their all-time high reached in June.

Nvidia counts on a relatively small group of customers — namely Microsoft, Meta, Alphabet, Amazon, Oracle and OpenAI — for an outsized amount of revenue because those are the companies either developing large language models, hosting big AI workloads or doing both. Any sign of slackening demand creates concern around Nvidia’s stock.

But lower rates are seen as another potential boon.

Fellow chipmakers Advanced Micro Devices and Broadcom also rallied big on Thursday, gaining 5.7% and 3.9%, respectively. AMD is trying to challenge Nvidia in the AI market, but it’s far behind and has some skeptics on Wall Street. The stock is only up about 6% this year.

AMD CEO Lisa Su told CNBC’s Jim Cramer on Wednesday that AI is a very long game, and we’re at the early stages.

“Let’s not be impatient. Tech trends are meant to play out over years, not over months,” Su said. “We’ve only been in this, let’s call it, ChatGPT world for maybe like 18 months. We’re all learning. It’s fun. We all use it.”

Su said AI is going to make its way into “all aspects of our lives,” including education and drug development.

“The beauty of all this is you need the computing, and that’s what we do,” Su said.

Tesla was the biggest gainer among tech’s megacap companies on Thursday, gaining 7.4%. The electric car maker has been a relative laggard for the year, down almost 2%, compared to the Nasdaq’s 20% gain. However, Tesla is up 72% from its low for the year in April.

Among the other top tech companies, Apple and Meta also closed with big gains, each rising almost 4%.

WATCH: Cramer’s interview with AMD CEO Lisa Su